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User-Initiated Flow Mobility in the PMIPv6-Based Evolved Packet System

机译：基于PMIPv6的演进分组系统中用户发起的流移动性

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摘要

Flow mobility is an emerging technology to support flexible network selection for an application flow and to spread concentrated load to less-overloaded Internet access. Network-based flow mobility (FMO) does not require a massive amount of software logic and system resources on the mobile node. Under this approach, there are two kinds of modes available: network-initiated and user-initiated. Network-initiated FMO decides the best access network suited for a specific flow, but the decisions depend on the operator's policy. Therefore, it has limitations in supporting the user's preference and private network selection. In the user-initiated mode, users can hand off specific flow so that information of both the current user's preference and the conditions of private network are reflected. User-initiated flow mobility method has not been what should be specified and how it can be supported with the protocol sequence for real deployment. This paper extends Internet Exchange Key v2 (IKEv2) and an Attach request message to support user-initiated FMO when a flow moves between 3G and Wi-Fi access. Through performance analysis, we confirm that user-initiated FMO is superior to network-initiated FMO in terms of signaling overhead and handover latency costs.
机译：流移动性是一种新兴技术，可支持对应用程序流进行灵活的网络选择，并将集中的负载分散到不太重载的Internet访问中。基于网络的流移动性（FMO）在移动节点上不需要大量的软件逻辑和系统资源。在这种方法下，有两种可用的模式：网络启动和用户启动。由网络发起的FMO决定适合特定流量的最佳接入网络，但该决定取决于运营商的政策。因此，它在支持用户的偏好和专用网络选择方面有局限性。在用户启动模式下，用户可以切换特定的流，从而反映当前用户的偏好和专用网络的条件的信息。尚未指定用户启动的流移动性方法以及协议序列如何支持它以进行实际部署。本文扩展了Internet Exchange密钥v2（IKEv2）和附加请求消息，以在3G和Wi-Fi访问之间移动时支持用户启动的FMO。通过性能分析，我们确认，在信令开销和切换延迟成本方面，用户启动的FMO优于网络启动的FMO。

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